Phalaenopsis orchid plant named ‘Serena’

ABSTRACT

A new and distinct  Phalaenopsis  plant named ‘Serena’ particularly characterized by flowers which are white with a pink/purple blush on the back; plants which may be propagated economically and uniformly using tissue culture; plants which produce more than one inflorescence; long and sturdy inflorescences; and relatively short, dark-green foliage.

Latin name of the genus and species of the plant claimed: Phalaenopsis hybrida.

Variety denomination: ‘Serena’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Phalaenopsis plant, botanically known as Phalaenopsis of the Orchidaceae family, and hereinafter referred to by the cultivar name ‘Serena’.

Phalaenopsis comprises a genus of about 55 species of herbaceous perennials many of which, or the hybrids thereof, are suitable for cultivation in the home or greenhouse. Phalaenopsis is predominantly epiphytic or rock-dwelling, and is native to tropical Asia, the Malay Archipelago, and Oceania. The species typically has 2-ranked, fleshy, oblong or elliptic leaves affixed to a short central stem (monopodial growth), which vary in size from 5 to 8 inches to over 2 feet. The leaves may be entirely green or mottled with silver grey.

Phalaenopsis orchids, often referred to as ‘Moth Orchids’ in the horticultural trade, are frequently used to furnish cut flowers for the florist trade or sold as flowering potted-plants for home or interiorscape.

Phalaenopsis produces upright or pendent lateral racemes, often with many showy flowers which open in succession beginning with the lowermost. The flowers possess three sepals and three petals; the lateral ones being alike. The lowermost petal, called the labellum, is three-lobed and is often more brightly-colored than the other flower segments. Flower colors include various shades of pink, white, yellow and red-brown.

Phalaenopsis orchids are typically propagated from seeds. Asexual propagation of Phalaenopsis is often done from off-shoots which frequently arise from the lower bracts of the inflorescence. The resulting plants are detached from the mother plant and may be planted in a suitable substrate.

The new Phalaenopsis ‘Serena’ is a product of a controlled breeding program conducted by the inventor, René Schoone, in Strengweg, Heemskerk, The Netherlands. The objective of the breeding program was to develop a new Phalaenopsis cultivar particularly characterized by its attractive and unique colored flowers, economical propagation via tissue culture, rapid growth, and a plant dimension suitable for packaging and shipping to the market.

The new Phalaenopsis ‘Serena’ originated from a cross made by the inventor in 2003 in Strengweg, Heemskerk, The Netherlands. The female or seed parent is the Phalaenopsis cultivar designated ‘Funny Virgin’, unpatented. The male or pollen parent is the Phalaenopsis cultivar designated ‘Southern Snow’, unpatented. The new Phalaenopsis ‘Serena’ was discovered and selected by the inventor as a single flowering plant within the progeny of the stated cross in a controlled environment in 2011 in Strengweg, Heemskerk, The Netherlands.

Asexual reproduction of the new Phalaenopsis cultivar by tissue culture (mericloning) was first performed in July, 2011 in Cieweg 13, Heemskerk, The Netherlands, and has demonstrated that the combination of characteristics as herein disclosed for the new cultivar are firmly fixed and retained through successive generations of asexual reproduction. The new cultivar asexually reproduces true-to-type.

BRIEF DESCRIPTION OF THE INVENTION

The following traits have been repeatedly observed and are determined to be unique characteristics of ‘Serena’, which in combination distinguish this Phalaenopsis as a new and distinct cultivar:

-   -   1. flowers which are white with a pink/purple blush on the back;     -   2. plant produces more than one inflorescence;     -   3. plants may be propagated economically and uniformly using         tissue culture;     -   4. inflorescences are long and sturdy; and     -   5. relatively short, dark-green foliage.

In comparison with the parental cultivars of ‘Serena’, the flowers of the female parent ‘Funny Virgin’ are white with some yellow in the labellum and about 10 cm in size, the flowers of the male parent ‘Southern Snow’ are white with some yellow and red in the labellum and about 12 cm in size, whereas the flowers of ‘Serena’ are white with some yellow and purple in the labellum and about 11 cm in size.

Presently, the commercial cultivar to which ‘Serena’ can be meaningfully compared is ‘Doremi’. The flowers of ‘Serena’ are larger and the color yellow in the labellum differs. ‘Doremi’ has yellow, whereas ‘Serena’ has yellow/green in the labellum.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs illustrate the overall appearance of the new Phalaenopsis ‘Serena’ showing the colors as true as is reasonably possible with colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description, which accurately describe the color of ‘Serena’.

FIG. 1 shows a side view perspective of a typical flowering plant of ‘Serena’ in a 12 cm pot, at 16 months of age.

FIG. 2 shows a close-up view of the typical flower of ‘Serena’.

FIG. 3 shows a close-up view of the typical leaves of ‘Serena’.

DETAILED BOTANICAL DESCRIPTION

The new Phalaenopsis cultivar ‘Serena’ has not been observed under all possible environmental conditions. The phenotype of the new cultivar may vary with variations in environment such as temperature, light intensity, and day length without any change in the genotype of the plant.

The aforementioned photographs, together with the following observations, measurements and values describe plants of ‘Serena’ as grown in a greenhouse in Strengweg, Heemskerk, The Netherlands, under conditions which closely approximate those generally used in commercial practice. Initially, the ideal temperature to grow plants of ‘Serena’ is 27° C. during the day and at night. Then, during the flowering phase of ‘Serena’, the ideal growing temperature is 20-22° C. during the day and 18° C. at night. Light levels for growing ‘Serena’ are a minimum of 5,000 lux and a maximum of 10,000 lux. A balanced fertilizer with level of 200 ppm N, 87 ppm P, 168 ppm K is applied. Duration of growth of ‘Serena’ from potting size is between 10 and 14 months.

Color references are made to The Royal Horticultural Society Colour Chart (R.H.S.), 2007 edition, except where general colors of ordinary significance are used. Color values were taken under daylight conditions at approximately noon in Zaandammerweg, Assendelft, The Netherlands. The age of the ‘Serena’ plants described is 12 months after potting.

-   Classification:     -   -   Botanical.—Phalaenopsis hybrida. -   Parentage:     -   -   Female or seed parent.—Phalaenopsis cultivar designated             ‘Funny Virgin’, unpatented.         -   Male or pollen parent.—Phalaenopsis cultivar designated             ‘Southern Snow’, unpatented. -   Propagation:     -   -   Type.—Tissue culture.         -   Rooting habit and description.—Fleshy; approximately 4 mm-7             mm wide and greyed/green in color (RHS 188B); freely             branching. It takes 12 weeks for plants growing in tissue             culture to initiate roots. -   Plant:     -   -   Size at maturity.—Height (from bottom of pot to highest             flower): about 55-70 cm. Spread: about 35 to 70 cm.         -   Growth habit.—Standard; green leaves (RHS N137A) and a             relatively normal raceme.         -   Vigor.—Moderate.         -   Crop time.—Following asexual propagation, at about 26 weeks             2 leaves appear; at about 30 weeks 3-4 leaves appear; after             a cold treatment of about 4-8 weeks at a temperature of             about 19° C. about 1-2 racemes with flowers appear. -   Foliage:     -   -   Quantity per plant.—About 6-8 leaves are produced before             flowering.         -   Arrangement and attachment.—Alternate, clasping.         -   Overall shape of leaf.—Oval; the tip is blunt and             asymmetric.         -   Texture (upper & underside).—Smooth and leathery.         -   Pubescence.—None.         -   Mature leaf length.—About 21 cm.         -   Mature leaf width.—About 9 cm.         -   Mature leaf thickness.—About 2 mm.         -   Mature leaf color.—Upper side: green (RHS N137A). Under             side: green (RHS 137C).         -   Leaf base.—Acute.         -   Margin.—Entire.         -   Venation.—Pattern: parallel. Color of midvein: upper side:             green (RHS N137B). Under side: purple (RHS 137D). -   Inflorescence description:     -   -   Appearance.—Upright to slightly pendant, racemose             inflorescence with bilaterally symmetrical flowers that open             in succession beginning with the lowermost flower. -   Raceme:     -   -   Quantity per plant.—About 1 to 2.         -   Number of flowers per raceme.—About 6-12.         -   Length.—About 60-70 cm.         -   Diameter.—About 6 mm. -   Peduncle:     -   -   Length.—About 20-30 cm.         -   Diameter.—About 4 mm.         -   Strength.—Strong.         -   Aspect.—Upright.         -   Texture.—Glabrous and smooth.         -   Color.—Green (RHS 138A) with (RHS N137A). -   Buds:     -   -   Height (from base to tip).—About 25 mm.         -   Diameter (at midpoint).—About 20 mm.         -   Shape.—Oval with a bump.         -   Color.—Yellow/green (a combination of RHS 144C and RHS 144D)             with a light red/purple haze (RHS 70A).         -   Orientation.—Same as flowers (forward facing). -   Flowering time: For an untreated plant (flowering plant that has not     undergone cold-treatment where the plant grows at a temperature of     18° C. to 19° C. for about 4 to 8 weeks after a period of about 30     weeks at a temperature of 25° C.), 1-2 racemes appear with flower     buds and flowers. First flowers can be expected approximately 4 to 6     months after planting a plant with a leaf diameter of 3 to 5 cm.     Flowers persistent. -   Flowering longevity: On the plant: about 4 to 6 months; lastingness     of cut flowers: has not been observed. -   Fragrance: No fragrance. -   Flower:     -   -   Rate of opening.—Flowers fully opened about 2 to 3 days             after petal and sepal separation.         -   Orientation at opening.—Slanted upward and outward.         -   Shape.—Typical shape of Phalaenopsis; see FIG. 2.         -   Size (of single bloom).—Height: about 80-90 mm. Diameter:             about 110 mm.         -   Quantity and arrangement.—Three petals and three sepals that             are trimerous, overlapping and arranged in 2 whorls. Petals             are more pronounced than sepals. -   Petals:     -   -   Arrangement.—Inner whorl comprises 3 petals: 2 lateral             petals and a labellum.         -   2 lateral petals.—Overall shape: broadly ovate and weakly             cupped. Apex: round. Margin: entire and weakly undulate.             Base: broadly ovate. Length: about 60 mm. Width: about             50 mm. Texture: Upper surface: smooth and satiny. Under             surface: smooth and satiny Color (when fully opened): upper             side: white (RHS NN155D). Under side: white (NN155D) with a             red/purple haze (RHS 70B). Labellum: Overall shape: 3-lobed             with 2 prominent callosities at central junction of the             lateral lobes and base of the midlobe. Lateral lobes of             labellum fold upward about the column; the midlobe extends             forward and is terminated by 2 filiform appendages at the             apex. Lateral lobes of the labellum are ovate in shape while             the midlobe is triangular with a bump and a rib on it.             Margin: entire and weakly undulate. Apex of the midlobe and             lateral lobes: oval. Length midlobe: about 22 mm. Width             midlobe (not flattened): about 25 mm. Length lateral lobe:             about 21 mm. Width lateral lobe (not flattened): about             16 mm. Depth of tube created by lateral lobes of labellum:             about 16 mm. Texture: Upper & under surface: smooth and             satiny. Color (when fully opened): Midlobe, upper side: main             color is white (RHS NN155D). At the base some purple (RHS             N77D) and in the corners some yellow/green (RHS 154C). Under             side: main color is white (RHS NN155D) with at the base             greyed/purple edges (RHS 184A). In the corners some             yellow/green (RHS 145C). Lateral lobes, upper side: Main             color is white (RHS NN155D) At the base some red/purple             stripes (RHS 61A). Lower edges from the base first some             purple (RHS N77D) and then green/yellow (RHS 152B) Under             side: main color is white (RHS NN155D). At the base some             purple (RHS 75A). Lower edge from the base some             greyed/purple and then yellow/green (RHS 151B). Cirrhi:             about 15 mm. color: white (RHS NN155D). Pestle             (Callosities): Length: about 6 mm. Width (not flattened):             about 7 mm. Color: main color is yellow (RHS 7A) with             red/purple spots and stripes (RHS 59A).         -   Sepals.—Arrangement: Outer whorl comprises 3 sepals, one             dorsal and two lateral sepals. Overall shape: elliptical and             weakly cupped. Margin: entire and weakly undulate. Length:             about 48 mm. Width: about 30 mm. Apex: oval; lateral is a             little pointy. Texture: Upper and under surface: smooth and             satiny. Color (when fully opened): Upper side, dorsal: white             (RHS NN155D) with a red/purple haze (RHS 70B). Lateral:             white (RHS NN155D) with a yellow/green haze (RHS 145B) and             some red/purple (RHS 70A) at the bottom. Under side, dorsal:             white (RHS NN155D) Lateral: white (RHS NN155D). At the base             yellow/green (RHS 145B) which runs into red/purple (RHS             72A).         -   Pedicel.—Length: about 35 mm. Diameter: about 3 mm. Texture:             glabrous and smooth. Color: starting at the flower white             (RHS NN155B) with a red/purple haze (RHS NN70A) which runs             into yellow/green (RHS 146A and RHS 146C). -   Reproductive organs:     -   -   Arrangement.—The stamens, style and stigmas are fused into a             single, short structure called the column, possessing one             terminal anther with pollen grains united into a pollinia,             which are covered by an anther cap. The stigma is located             under the column behind the pollinia. The ovary is inferior             with three carpels present. The plant has not produced seed.         -   Column.—Length: about 8 mm. Diameter: about 5 mm. Color:             white (RHS NN155D).         -   Pollinia.—Quantity: two. Diameter: about 3 mm. Color:             yellow/orange (RHS 23A).         -   Ovary.—Length: about 4 mm. Diameter: about 3 mm. Color:             white (RHS NN155D). -   Disease/pest resistance/susceptibility: No specific resistance or     susceptibility observed. -   Temperature tolerance: Tolerant to a low temperature of about 15° C.     and to a high temperature about 30° C. 

What is claimed is:
 1. A new and distinct Phalaenopsis plant named ‘Serena’, as illustrated and described herein. 